Multiple Choice
In the Hardy-Weinberg equation, p2 represents __________.
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22. Evolution of Populations
The Hardy-Weinberg Principle
Back22. Evolution of Populations
The Hardy-Weinberg Principle
- Multiple ChoiceIn a population in Hardy-Weinberg equilibrium, 1% of the individuals in a population show the recessive trait of a certain characteristic. In this situation, what is the value of p?1666views
- Multiple ChoiceIn the equation for Hardy-Weinberg equilibrium, 1 represents __________.1562views
- Multiple ChoiceApproximately 1 out of every 2,500 Caucasians in the United States is born with the recessive disease cystic fibrosis. According to the Hardy-Weinberg equilibrium equation, approximately what percentage of people are carriers?1572views1rank
- Multiple ChoiceIn a certain group of African people, 4% are born with sickle-cell disease (homozygous recessive). If this group is in Hardy-Weinberg equilibrium, what percentage of the group has the selective advantage of being more resistant to malaria (heterozygous) than those individuals who are homozygous for normal hemoglobin or for sickle-cell disease?2602views
- Multiple ChoiceAssume a population in Hardy-Weinberg equilibrium with these genotypic frequencies: AA = 0.25, Aa = 0.50, and aa = 0.25. If you remove all the homozygous dominants and allow the remaining population to reproduce (again under Hardy-Weinberg conditions), what will be the frequency of homozygous dominants in the next generation?2390views1comments
- Multiple ChoiceWhich of the following sets of conditions is required for Hardy-Weinberg equilibrium?1376views
- Multiple ChoiceHow does natural selection fashion organisms?1340views
- Multiple ChoiceConsider a gene that exists in two allelic forms in a simple Mendelian dominant/recessive pair. In a large population of randomly breeding organisms, the frequency of a recessive allele is initially 0.3. There is no migration and no selection. Humans enter this ecosystem and selectively hunt individuals showing the dominant trait. When the gene frequency is reexamined at the end of the year, __________.1294views1rank
- Multiple Choice
In the Hardy-Weinberg equation, what does the term 2pq represent?
952views5rank - Multiple Choice
Which of the following statements about the Hardy-Weinberg equation are true?
I) For a gene with two alleles, q2 represents the frequency of one of the homozygotes.
II) If p and q both equal 0.5, you expect 50% of the population to be heterozygous.
III) The p2 and q2 terms will be equal as they both represent the probability of being a homozygote.
732views4rank - Multiple Choice
Imagine a population of cats where one gene codes for eye color. The E allele codes for yellow eyes and is dominant. The e allele codes for green eyes and is recessive. The frequency of the E allele is 0.6, and the frequency of the e allele is 0.4. Assuming the population is in Hardy-Weinberg equilibrium, what percent of the population will have green eyes?
717views3rank - Multiple Choice
Sickle cell anemia is a recessive trait. In Nigeria, it is estimated that 2.4% of the population is born with sickle cell anemia. Heterozygotes for the sickle cell allele are said to have the sickle cell trait and have few sickle cell symptoms. Assuming that the population is in Hardy Weinberg equilibrium for the sickle cell gene, what percentage of the population would you expect to have the sickle cell trait?
980views8rank - Multiple Choice
PTC is a chemical that elicits a bitter taste response in some people. The ability to taste PTC depends on the presence of the PTC-tasting allele. Individuals with at least one copy of the PTC-tasting allele taste PTC as bitter. It is estimated that about 70% of the population taste PTC. Assuming that the population is in Hardy-Weinberg equilibrium for this trait, what percent of the population would you expect to be heterozygous for this trait?
968views8rank - Multiple Choice
In a population of glass frogs (Hyalinobatrachium munozorum) you collect 200 individuals. Of those, you determine that 160 are homozygous for the H allele, 10 are homozygous for the h allele, and 30 are heterozygous. Is this population in Hardy-Weinberg equilibrium? If not, why not?
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